Home / 90,856.08-136,196.64-55,805.76

Finding the Fourth Proportional to 90,856.08, 136,196.64 and 55,805.76

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Solution

The fourth proportional to 90,856.08, 136,196.64 and 55,805.76 is: 83,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856.08 : 136,196.64 = 55,805.76 : x
  2. Step 2: Convert to fraction form
    90,856.08/136,196.64 = 55,805.76/x
  3. Step 3: Cross multiply
    90,856.08x = 136,196.64 × 55,805.76
  4. Step 4: Simplify right side
    90,856.08x = 7,600,557,004.65
  5. Step 5: Solve for x
    x = 7,600,557,004.65/90,856.08
  6. Step 6: Final answer
    x = 83,654.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.